JP3183648U - Groove structure - Google Patents

Abstract

A height adjusting member for installing a lid on a side wall of a U-shaped block so as to match a slope of a road surface is configured separately from a lid receiving portion to reduce the weight of the lid. When the thickness is different, it is possible to cope with it only by replacing the receiving part, and the inclination of the height adjustment member is adjusted to provide a groove structure that eliminates the need for surface finishing on the mortar filled in the gap between the side walls. To do.
A height adjusting member 23 has a hanging portion attached to a side wall 21a of a U-shaped block so that the height can be adjusted, a horizontal portion that covers a top end surface of the side wall, has a mortar filling port, and projects a bolt. 23b, and after the mold is attached to the horizontal end and the side wall outer surface, the gap between the side wall upper end surface and the horizontal portion 23b is filled with mortar, and then the receiving frame 31 is placed on the horizontal portion 23b. Secure with bolts and nuts 33. Next, a grating is installed between the receiving frames.
[Selection] Figure 12

Description

  The present invention relates to a groove structure such as a transverse groove installed across the road and a side groove installed on the side of the road, in particular, made of precast concrete that is installed across the road or in a straight line on the side of the road. The present invention relates to a groove structure including a U-shaped block, a steel receiving frame attached to an inner edge of the U-shaped block, and a groove cover such as a grating that is attached between receiving frames on both sides of the groove.

  FIG. 1 shows a U-shaped block 1 made of precast concrete, a steel receiving frame 2 attached to a step on the inner edge of the U-shaped block 1, and a groove cover 3 attached between both receiving frames. An example of a conventional groove structure is shown. When such a groove structure is applied to a transverse groove, the road surface is drained and has a downward slope from the top to the side of the road at the bottom. When the character block 1 is installed with its lower surface joined as shown in FIG. 2, a large gap is generated between the upper surface of the U-shaped block 1 or between the groove lids 3 due to the bent portion at the top.

  When the groove structure shown in FIG. 1 is applied to a side groove on the road side, as shown in FIG. 3, drainage may be performed in a direction opposite to the road gradient. In this case, as shown in the figure, the bottom of the U-shaped block 1 is filled with the mortar 5 to obtain the required water gradient. However, the longer the water gradient section opposite to the road gradient, the longer the mortar 5 has. The filling amount also increases, and it is necessary to use a deep U-shaped block 1 in order to secure a necessary drainage cross section.

  There is also known a groove structure in which a U-shaped block is installed so as to obtain a required water gradient, and a groove lid can be installed in accordance with a road surface. As shown in the following document 1, after installing a U-shaped block made of metal or heat-resistant resin so that the required groove gradient can be taken, height adjustment members are installed for grating installation on both sides of the U-shaped block. After adjusting the height so that the level of the step is horizontal, the U-shaped block and the outside of the height adjusting member attached to the block are filled with cement mortar to form the floor, It has a structure with a grating attached.

Japanese Patent No. 2548086

  When the transverse groove is configured using the U-shaped block 1 shown in FIG. 1, after the U-shaped block 1 is installed horizontally as shown in FIG. 4 (the U-shaped block 1 is used to take a water gradient). It may be installed so that the required water gradient can be taken, or the bottom of the block may be filled with mortar), and the height adjustment member 7 disclosed in Literature 1 is adjusted so that the steps match the road gradient. If the mortar 8 is filled in the gap between the upper end surface of the side wall of the U-shaped block 1 and the height adjusting member 7 after being attached to the U-shaped block 1, the gap between the groove lids laid on the step of the height adjusting member The gap in the bent portion can be reduced.

  Further, when the U-shaped block 1 shown in FIG. 1 is used to install a side gutter on the road side so as to form a water gradient opposite to the road gradient, the U-shaped block 1 is required as shown in FIG. After installing with a water gradient, the height adjusting member 7 of Document 1 is height-adjusted so that the step matches the road gradient and attached to the U-shaped block 1, then on the side wall of the U-shaped block 1 If the gap between the end face and the height adjusting member 7 is filled with mortar 8, it is not necessary to fill the bottom of the U-shaped block 1 with the mortar to obtain the required water gradient, and the necessary drainage cross section is secured. can do.

As described above, if the height is adjusted using the height adjusting member 7 so that the step matches the slope of the road surface, the gap at the fold between the groove lids can be reduced and the necessary water gradient can be obtained. It is not necessary to fill the bottom of the U-shaped block with mortar, the necessary drainage cross section can be secured, and the U-shaped block 1 is installed so as to match the slope of the road surface as shown in FIGS. In this case, a step such as unevenness occurs between the U-shaped blocks to be connected, making it difficult to attach the receiving frame, and adjusting the position and inclination of the U-shaped block to eliminate the level difference makes the U-shaped block heavy. However, the height adjusting member 7 is lighter than the U-shaped block 1 and has advantages such as easy adjustment.
(1) Although the height adjustment member 7 is lighter than the U-shaped block 1, it has a considerable weight, so that it is lighter so that it can be easily carried and handled during installation. Hope to do,
(2) There are various types of groove lids ranging from the smallest thickness to the largest several times the maximum, and in order to be able to cope with groove lids with different thicknesses, it corresponds to the thickness of each groove lid. A number of height adjustment members having a height step are required. (3) In order to fill the mortar, the mold 11 is installed as shown in FIG. It seems that mortar will be filled between the rising part 12a and the mold 11 but it takes a lot of labor to attach the mold 11 and the rising part 12a is necessary for mounting the groove lid. Therefore, the rising portion 12a is obstructive, and the mortar filling port cannot be taken so wide in the width direction of the upper end surface of the side wall of the block. Mortar surface finish needs to be done,
There are problems such as.
It is an object of the present invention to provide a groove structure that can cope with the above-mentioned demands and problems.

  The invention according to claim 1 is a U-shaped block made of precast concrete installed across the road or in a straight line on the side of the road horizontally or with a required water gradient for drainage, and a hanging part The horizontal part is fixed to the inner side surface of the side wall constituting the U-shaped block by a mounting means so that the height can be adjusted, while the horizontal part refracted laterally from the upper end of the vertical part has a mortar filling port. A height adjusting member that covers the upper end surface of the U-shaped side wall of the U-shaped block; a horizontal portion of the height adjusting member that is attached to the U-shaped block side wall by adjusting the height; and on the U-shaped block side wall. A mortar filled through the mortar filling port into a gap between the end surface, a groove lid receiving portion provided on a horizontal portion of the height adjusting member after the mortar filling, and a hangar attached to the receiving portion. Grooved lid and more The groove lid receiving portion is composed of an angle-shaped receiving frame fixed to the horizontal portion of the height adjusting member by fixing means, or fixed to the horizontal portion of the height adjusting member and the horizontal portion by fixing means. It is characterized by comprising a rising portion of an angled material.

  The device according to claim 2 is the device according to claim 1, wherein the height adjusting member descends from the other end of the horizontal portion having a hanging portion at one end, and the side wall of the U-shaped block with the hanging portion. It has the 2nd drooping part which pinches | interposes an upper end part, It is characterized by the above-mentioned.

  According to the first aspect of the invention, the height adjustment member is attached to the side wall of the U-shaped block, and then the receiving frame or the angle member is fixed to the horizontal portion of the height adjustment member. The member and the receiving frame or angle material are formed separately, and each member is lightweight, so it can be easily carried and handled at the time of installation, and when the thickness of the groove lid is different, the receiving frame or angle material corresponding to the thickness The height adjustment member can be fixed to the horizontal portion of the height adjustment member, and the height adjustment member can be used in common even if the thickness of the groove lid is different. The mortar filling port formed in the horizontal portion of the height adjustment member is a horizontal portion. The mortar filling port can be easily filled and the mortar filling port is covered with a receiving frame or a groove lid, and even if part of it is not covered, Since covered with asphalt during paving, having an effect such as that there is no need to perform surface finishing of the filled mortar.

  According to the second aspect of the invention, the second hanging part functions as a mold, and the attachment of the mold can be made unnecessary only by attaching the height adjusting member.

Sectional drawing of the conventional groove structure. The schematic diagram in the center part of a road crossing ditch. The schematic diagram of the gutter where a road gradient and a water gradient make a reverse direction. The schematic diagram in the center part of the transverse groove which attached the height adjustment member to the U-shaped block. The schematic diagram which attached the height adjustment member to the U-shaped block in the side groove where a road gradient and a water gradient make a reverse direction. Sectional drawing which attached the receiving frame and the formwork to the side wall upper part of a U-shaped block. Sectional drawing of the U-shaped block used by the groove | channel structure which concerns on this invention. Sectional drawing which attached the height adjustment member to the U-shaped block shown in FIG. The perspective view of the height adjustment member shown in FIG. Sectional drawing which attached the height adjustment member to the side wall upper part of a U-shaped block. Sectional drawing filled with mortar. Sectional drawing which attached the height adjustment member, the receiving frame, and the grating to the upper part of the side wall of the U-shaped block. The figure which looked at the state which attached the grating to the receiving frame attached to the block side wall upper part via the height adjustment member from the block inner side. Sectional drawing which attached the angle material instead of the receiving frame shown in FIG. 12, and comprised the receiving part. Sectional drawing which integrally formed the drooping part in the horizontal part end of the height adjustment member.

Hereinafter, a groove structure according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 7 shows a U-shaped block 21 made of precast concrete comprising both side walls 21a and a bottom wall 21b connecting the both side walls 21a at the lower end, and each side wall 21a has a flat upper end. Bolts 22 are protruded inwardly on the inner upper portion so as to face opposite ends of the block 21 in the longitudinal direction.

FIG. 8 shows a U-shaped block in which a height adjusting member 23 is attached to the inner upper portion of the side wall 21a. The height adjusting member 23 is made of steel, and as shown in FIG. An angle formed by a horizontal portion 23b refracted laterally from the upper end of the portion 23a, and a vertical hole 25 through which the bolt 22 is slidable at both ends in the longitudinal direction of the hanging portion 23a corresponds to the bolt 22 Is formed. In the horizontal portion 23b, bolts 26 protrude upward at both ends in the longitudinal direction, and a mortar filling port 27 is formed between the bolts. In the example shown in FIG. 8, a plurality of the mortar filling ports 27 are formed at regular intervals in the longitudinal direction of the height adjusting member 23, but one may be formed.

In order to attach the height adjusting member 23 to the upper part of the side wall of the block 21, the vertical hole 25 at both ends of the height adjusting member 23 is inserted into the bolt 22, and the nut 24 that constitutes the attaching means together with the bolt 22 is suspended. A bolt 22 protruding from the portion 23a is screwed to be fastened and fixed.

  FIG. 10 shows details of the height adjusting member 23 attached to the upper portion of the side wall of the block 21, and the height adjusting member 23 is high in the direction of the arrow in the drawing within the range of the vertical hole 25 that passes through the bolt 22. The height of the height adjustment member 23 can be adjusted by changing the height at both ends in the longitudinal direction. At least one end of the height adjustment member 23 attached to the inclination is on the side wall upper end surface. A gap 29 is formed between the upper end surface and the upper end surface.

  After adjusting the inclination, as shown in FIG. 11, the mold frame 28 is applied so that the upper end of the block side wall 21a is sandwiched between the hanging part 23a of the height adjusting member 23, and the conventional method is used. Thus, the gap 29 is closed except for the mortar filling port 27.

  After attaching the height adjusting member 23, the mortar 30 is driven and filled into the gap 29 from the mortar filling port 27 of the horizontal portion 23b. After curing, the formwork 28 is removed, but it may be buried and left attached.

  After filling the gap 29 with mortar, as shown in FIG. 12, the angle-shaped receiving frame 31 constituting the receiving portion inserts the fixing portion 32 fixed to the outside thereof into the bolt 26 and screwed into the protruding portion of the bolt 26. The nut 33 (the nut 33 constitutes a fixing means of the receiving frame 31 together with the mounting portion 32 and the bolt 26) is fastened and fixed.

  After the height adjusting member 23, the mortar filling, and the mold 31 are sequentially attached to the side walls 21a of the block 21 as described above, a lid, for example, a grating 35 as shown in the figure is attached to the receiving frame. Attached between receiving frames (see FIG. 12), asphalt pavement is performed in a conventional manner before and after the attachment of the grating 35. In the figure, 34 is an asphalt pavement layer.

  FIG. 13 shows a state in which the grating 35 is attached to the receiving frame 31 attached to the upper part of the side wall of the block 21 via the height adjusting member 23. In FIG. 13, the height adjusting member 23 is attached horizontally and inclined. However, in the case of inclining, the height of the height adjusting member 23 is adjusted within the range of the long hole 25.

  According to the groove structure of the present embodiment, the receiving frame 31 is separate from the height adjusting member 23, and each is light in weight so that it can be easily carried and handled during installation. The grating 35 has various thicknesses. There is a type, and a receiving frame 31 suitable for the thickness of the grating 35 is used. The height adjusting member 23 can be used in common regardless of the thickness of the grating 35, and the height adjusting member 23 can be used horizontally. Since there is no obstacle between the bolts 23 in the portion 23b, it is possible to form the mortar filling port 26 in a wide range. The mortar filling port 26 is notched toward the hanging portion 23a from the end surface on the horizontal portion side and formed over the entire width direction of the horizontal portion 23b. The mortar filling is facilitated, and the mortar filling port 27 is covered with the receiving frame 31 and the mounting portion 32 after the receiving frame 31 is mounted. The effect of such it is not necessary to perform surface finishing of mortar exposed from the mouth 27.

  In the embodiment, the receiving frame 31 is fixed to the horizontal portion 23b of the height adjusting member 23 by the bolt 26 and the nut 33 in the mounting portion 32, but can be fixed to the horizontal portion 23b by welding.

  In the above embodiment, the receiving portion is constituted by the receiving frame 31, but in another embodiment, as shown in FIG. 14, the horizontal portion 23b of the height adjusting member 23 and the angle fixed to the horizontal portion 23b. It is constituted by a rising portion 37a of the material 37. In the present embodiment, the configuration of the receiving portion is simplified because the receiving frame 31 is not provided.

  In the above embodiment, the mold 28 is attached at the time of filling the mortar. In another embodiment, as shown in FIG. 15, the hanging portion 39c is provided at the end of the horizontal portion 39b provided with the mortar filling port 27 of the height adjusting member 39. Are integrally formed, and the upper end portion of the side wall of the block 21 is sandwiched between the hanging portion 39c and the hanging portion 23a of the height adjusting member 39 when fitted to the upper end portion of the side wall of the block 21 to replace the formwork. Since the mold 28 is not necessary, the work can be simplified.

21 ·· U-shaped block 21a made of precast concrete · · Side walls 22, 26 · · Bolts 23 and 39 · · Height adjustment member 23a · · Hanging portion 23b · · Horizontal portions 24 and 33 · · Nut 25 · · Vertical Hole 27 ・ ・ Mortar filling port 28 ・ ・ Formwork 29 ・ ・ Gap 31 ・ ・ Receiving frame 35 ・ ・ Grating 37 ・ ・ Angle material

Claims (2)

  It consists of a U-shaped block made of precast concrete that is installed horizontally with a required water gradient for drainage, and a hanging part and a horizontal part. Is fixed to the inner side surface of the side wall constituting the U-shaped block by a mounting means so that the height can be adjusted, while the horizontal portion refracted laterally from the upper end of the hanging portion has a mortar filling port, and the U-shaped The height adjustment member that covers the upper end surface of the side wall of the block, the horizontal portion of the height adjustment member that is attached by adjusting the height to the U-shaped block side wall, and the gap between the upper end surface of the U-shaped block side wall A mortar filled through a mortar filling port; a groove lid receiving portion provided on a horizontal portion of the height adjusting member after the mortar filling; and a groove lid mounted on the receiving portion. The groove lid receiving part is front It consists of an angle-shaped receiving frame fixed to the horizontal part of the height adjusting member by fixing means, or a horizontal part of the height adjusting member and a rising part of the angle member fixed to the horizontal part by the fixing means A groove structure characterized by comprising.   The height adjusting member has a second hanging portion that descends from the other end of the horizontal portion having a hanging portion at one end and sandwiches the upper end portion of the side wall of the U-shaped block with the hanging portion. The groove structure according to claim 1.